In 1703, Bloomingdale Road was built to respond to increasing commerce in the village of Bloomingdale, located in the northern part of the neighborhood now. But for the most part, the natural topography of the Upper West Side proved resistant to development for much of the 18th and 19th centuries. It was very rocky and hilly, which made for smaller farms in its early days. Many steep hills were made of schist, a rock that is very hard and difficult to cut through. After the Croton Aqueduct was built in the 19th century, the arrival of sanitary water for drinking and bathing made more development possible.

When Central Park was built, the majority of Manhattan’s people still lived downtown; urban planners only guessed that development would eventually spread north to cover uptown. Building the park was a huge effort, with city officials rushing to create a large park on the island before it got too built up to support such an effort. One of the architects, Frederick Law Olmstead, anticipated that the streets alongside the park would eventually be really desirable for residential developers. When the park was built, planners cleared out built communities to use the space, including a prominent African-American community called Seneca Village.

The prospect of having a large park for recreation attracted new residents to the area. Additionally, the American Museum of Natural History began construction in 1869, finishing and opening to the public 8 years later.  The museum continued to expand and become more popular over the years.

In the 1870s, there were some large and elegant residential structures in place but for the most part the area was largely much more rural. Thanks in part to Central Park and the Museum of Natural History, real estate developers begin to see this area as a potentially fashionable suburb. They begin to buy and develop land rapidly across the next several decades. Brownstones were built on many of the cross streets, and Columbus Avenue was intended to be a shopping district: it featured mostly flat-topped apartment buildings with shops on the ground level. At this point, the neighborhood was referred to as “West End” and was really considered to be separate from New York City. By the end of the century, old Bloomingdale Road, built back in 1703 to connect the city to the northern villages, had a new name: Broadway.

The arrival of public transportation dramatically changed daily life on the Upper West Side. An elevated train ran along Columbus Avenue before the underground system was built. In 1871, it reached 51st Street, and 7 years later stretched up to 91st Street. Not only did the train line physically connect the previous “fashionable suburb” to Downtown, allowing it to become part of the city, but development also sprang up rapidly along the train line. By 1905, an underground train line was built as far north on Broadway as 96th Street. Now, people could live anywhere from the Hudson to Central Park and be able to easily access affordable transportation to their jobs in other parts of the city.   When the subway was completed, the properties nearby became more and more valuable.

The elevated train line continues expanding and being used through 1940, which encourages storefront businesses to open and thrive, as they are visible and easily accessible to travelers on the street. The first floor of most flat-topped apartment buildings (like the ones visible on Columbus) became stores. As public transportation grew, so did the streets around it; by the 1930s and 40s, the Upper West Side looked recognizably like a part of New York City. Immigrant communities continue to grow in the neighborhood as well. Many families moved out of the increasingly crowded tenements on the Lower East Side in the 20’s and 30’s. In the late 30’s, another influx of Jewish immigrants/refugees arrive from Germany after fleeing the growing threat of the Nazi regime.